Ranchu-Calico 70-80cm (WYSIWYG)

Calico Ranchu Goldfish (Carassius auratus)

The Calico Ranchu is a premium fancy goldfish variety known for its striking mottled colours and classic Ranchu shape. With a smooth, arched back, no dorsal fin, and flowing tail, this variety combines elegance with the unique charm of calico coloration—typically a mix of red, orange, white, black, and sometimes blue.

Quick Overview

• Scientific Name: Carassius auratus
• Common Name: Calico Ranchu
• Size: 12–18 cm
• Lifespan: 10–15+ years
• Temperament: Peaceful
• Care Level: Moderate

Appearance

Calico Ranchus stand out for their multi-coloured patterns over a smooth, rounded body. They develop the signature Ranchu head growth (wen) as they mature, adding to their distinctive appearance. The lack of a dorsal fin and rounded body gives them a soft, elegant silhouette.

⚠️ Tank Size Requirements (Very Important)

Goldfish need proper space to thrive:

• ✅ Minimum: 60 litres per goldfish
• ⭐ Ideal: 80–100 litres per goldfish
• ❌ Small bowls or nano tanks are not suitable

👉 Example:

• 2 Calico Ranchus = minimum 120L (ideally 160–200L)

Adequate space is crucial for swimming, growth, and maintaining stable water quality.

Tank Requirements

• Temperature: 18–24°C
• pH: 6.5–7.5
• Filtration: Strong (heavy waste producers)
• Setup:
  • Smooth substrate or bare bottom
  • Minimal décor to avoid fin damage
  • Open swimming space

Diet

Omnivorous:

• Sinking goldfish pellets
• Gel foods for digestion
• Blanched vegetables (peas, spinach)
• Occasional protein treats

Tank Mates

• Best kept with other Ranchus or similarly slow fancy goldfish
• Avoid:
  • Fast-swimming goldfish (comets, commons)
  • Fin-nippers
  • Tropical species

Behavior

• Calm, peaceful, and social
• Slow “waddling” swimming style
• Do best in groups of similar-bodied goldfish

Special Considerations

• Wen growth requires clean water to prevent infection
• Prone to buoyancy issues if overfed or fed only floating foods
• Heavy waste producers = regular maintenance essential
• No dorsal fin = less stability in strong currents

Why Choose a Calico Ranchu?

The Calico Ranchu offers a combination of premium appearance and gentle personality. Its unique colour patterns and elegant Ranchu shape make it a standout for hobbyists looking for both beauty and charm in a fancy goldfish.